package com.woniu.user.configuration;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@Configuration
@EnableCaching         //开启redis缓冲,让通过sql查询出来的数据可以存放到redis中
public class RedisConfiguration {
    /**
     * redisTemplate相关配置
     *
     * @param factory
     * @return
     */
    @Bean
    @SuppressWarnings("all")
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        //设置工厂
        template.setConnectionFactory(factory);
        //使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值
        //使用json是因为方便跨语言
        //（默认使用JDK的序列化方式）
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer =
                new Jackson2JsonRedisSerializer<>(Object.class);
        //创建对象映射
        ObjectMapper mapper = new ObjectMapper();
        //指定要序列化的域，field,get和set,以及修饰符范围，ANY是都有包括private和public
        mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        //指定序列化输入的类型，类必须是非final修饰的，final修饰的类，比如String,Integer
        //等会抛出异常
        mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        //
        jackson2JsonRedisSerializer.setObjectMapper(mapper);
        //字符串序列化器
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        //key采用String的序列化方式
        template.setKeySerializer(stringRedisSerializer);
        //hash的key也采用String的方式
        template.setHashKeySerializer(stringRedisSerializer);
        //value采用jackson的方式
        template.setValueSerializer(jackson2JsonRedisSerializer);
        //hash的value也采用Jackson
        template.setHashValueSerializer(jackson2JsonRedisSerializer);

        template.afterPropertiesSet();
        return template;
    }
}
